| 1 | /* |
| 2 | * Copyright (c) 2011 Stefano Sabatini |
| 3 | * This file is part of FFmpeg. |
| 4 | * |
| 5 | * FFmpeg is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU Lesser General Public |
| 7 | * License as published by the Free Software Foundation; either |
| 8 | * version 2.1 of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * FFmpeg is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * Lesser General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU Lesser General Public |
| 16 | * License along with FFmpeg; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | |
| 20 | /** |
| 21 | * @file |
| 22 | * filter for showing textual video frame information |
| 23 | */ |
| 24 | |
| 25 | #include <inttypes.h> |
| 26 | |
| 27 | #include "libavutil/adler32.h" |
| 28 | #include "libavutil/display.h" |
| 29 | #include "libavutil/imgutils.h" |
| 30 | #include "libavutil/internal.h" |
| 31 | #include "libavutil/pixdesc.h" |
| 32 | #include "libavutil/stereo3d.h" |
| 33 | #include "libavutil/timestamp.h" |
| 34 | |
| 35 | #include "avfilter.h" |
| 36 | #include "internal.h" |
| 37 | #include "video.h" |
| 38 | |
| 39 | static void dump_stereo3d(AVFilterContext *ctx, AVFrameSideData *sd) |
| 40 | { |
| 41 | AVStereo3D *stereo; |
| 42 | |
| 43 | av_log(ctx, AV_LOG_INFO, "stereoscopic information: "); |
| 44 | if (sd->size < sizeof(*stereo)) { |
| 45 | av_log(ctx, AV_LOG_INFO, "invalid data"); |
| 46 | return; |
| 47 | } |
| 48 | |
| 49 | stereo = (AVStereo3D *)sd->data; |
| 50 | |
| 51 | av_log(ctx, AV_LOG_INFO, "type - "); |
| 52 | switch (stereo->type) { |
| 53 | case AV_STEREO3D_2D: av_log(ctx, AV_LOG_INFO, "2D"); break; |
| 54 | case AV_STEREO3D_SIDEBYSIDE: av_log(ctx, AV_LOG_INFO, "side by side"); break; |
| 55 | case AV_STEREO3D_TOPBOTTOM: av_log(ctx, AV_LOG_INFO, "top and bottom"); break; |
| 56 | case AV_STEREO3D_FRAMESEQUENCE: av_log(ctx, AV_LOG_INFO, "frame alternate"); break; |
| 57 | case AV_STEREO3D_CHECKERBOARD: av_log(ctx, AV_LOG_INFO, "checkerboard"); break; |
| 58 | case AV_STEREO3D_LINES: av_log(ctx, AV_LOG_INFO, "interleaved lines"); break; |
| 59 | case AV_STEREO3D_COLUMNS: av_log(ctx, AV_LOG_INFO, "interleaved columns"); break; |
| 60 | case AV_STEREO3D_SIDEBYSIDE_QUINCUNX: av_log(ctx, AV_LOG_INFO, "side by side " |
| 61 | "(quincunx subsampling)"); break; |
| 62 | default: av_log(ctx, AV_LOG_WARNING, "unknown"); break; |
| 63 | } |
| 64 | |
| 65 | if (stereo->flags & AV_STEREO3D_FLAG_INVERT) |
| 66 | av_log(ctx, AV_LOG_INFO, " (inverted)"); |
| 67 | } |
| 68 | |
| 69 | static void update_sample_stats(const uint8_t *src, int len, int64_t *sum, int64_t *sum2) |
| 70 | { |
| 71 | int i; |
| 72 | |
| 73 | for (i = 0; i < len; i++) { |
| 74 | *sum += src[i]; |
| 75 | *sum2 += src[i] * src[i]; |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | static int filter_frame(AVFilterLink *inlink, AVFrame *frame) |
| 80 | { |
| 81 | AVFilterContext *ctx = inlink->dst; |
| 82 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
| 83 | uint32_t plane_checksum[4] = {0}, checksum = 0; |
| 84 | int64_t sum[4] = {0}, sum2[4] = {0}; |
| 85 | int32_t pixelcount[4] = {0}; |
| 86 | int i, plane, vsub = desc->log2_chroma_h; |
| 87 | |
| 88 | for (plane = 0; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++) { |
| 89 | int64_t linesize = av_image_get_linesize(frame->format, frame->width, plane); |
| 90 | uint8_t *data = frame->data[plane]; |
| 91 | int h = plane == 1 || plane == 2 ? FF_CEIL_RSHIFT(inlink->h, vsub) : inlink->h; |
| 92 | |
| 93 | if (linesize < 0) |
| 94 | return linesize; |
| 95 | |
| 96 | for (i = 0; i < h; i++) { |
| 97 | plane_checksum[plane] = av_adler32_update(plane_checksum[plane], data, linesize); |
| 98 | checksum = av_adler32_update(checksum, data, linesize); |
| 99 | |
| 100 | update_sample_stats(data, linesize, sum+plane, sum2+plane); |
| 101 | pixelcount[plane] += linesize; |
| 102 | data += frame->linesize[plane]; |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | av_log(ctx, AV_LOG_INFO, |
| 107 | "n:%"PRId64" pts:%s pts_time:%s pos:%"PRId64" " |
| 108 | "fmt:%s sar:%d/%d s:%dx%d i:%c iskey:%d type:%c " |
| 109 | "checksum:%08"PRIX32" plane_checksum:[%08"PRIX32, |
| 110 | inlink->frame_count, |
| 111 | av_ts2str(frame->pts), av_ts2timestr(frame->pts, &inlink->time_base), av_frame_get_pkt_pos(frame), |
| 112 | desc->name, |
| 113 | frame->sample_aspect_ratio.num, frame->sample_aspect_ratio.den, |
| 114 | frame->width, frame->height, |
| 115 | !frame->interlaced_frame ? 'P' : /* Progressive */ |
| 116 | frame->top_field_first ? 'T' : 'B', /* Top / Bottom */ |
| 117 | frame->key_frame, |
| 118 | av_get_picture_type_char(frame->pict_type), |
| 119 | checksum, plane_checksum[0]); |
| 120 | |
| 121 | for (plane = 1; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++) |
| 122 | av_log(ctx, AV_LOG_INFO, " %08"PRIX32, plane_checksum[plane]); |
| 123 | av_log(ctx, AV_LOG_INFO, "] mean:["); |
| 124 | for (plane = 0; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++) |
| 125 | av_log(ctx, AV_LOG_INFO, "%"PRId64" ", (sum[plane] + pixelcount[plane]/2) / pixelcount[plane]); |
| 126 | av_log(ctx, AV_LOG_INFO, "\b] stdev:["); |
| 127 | for (plane = 0; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++) |
| 128 | av_log(ctx, AV_LOG_INFO, "%3.1f ", |
| 129 | sqrt((sum2[plane] - sum[plane]*(double)sum[plane]/pixelcount[plane])/pixelcount[plane])); |
| 130 | av_log(ctx, AV_LOG_INFO, "\b]\n"); |
| 131 | |
| 132 | for (i = 0; i < frame->nb_side_data; i++) { |
| 133 | AVFrameSideData *sd = frame->side_data[i]; |
| 134 | |
| 135 | av_log(ctx, AV_LOG_INFO, " side data - "); |
| 136 | switch (sd->type) { |
| 137 | case AV_FRAME_DATA_PANSCAN: |
| 138 | av_log(ctx, AV_LOG_INFO, "pan/scan"); |
| 139 | break; |
| 140 | case AV_FRAME_DATA_A53_CC: |
| 141 | av_log(ctx, AV_LOG_INFO, "A/53 closed captions (%d bytes)", sd->size); |
| 142 | break; |
| 143 | case AV_FRAME_DATA_STEREO3D: |
| 144 | dump_stereo3d(ctx, sd); |
| 145 | break; |
| 146 | case AV_FRAME_DATA_DISPLAYMATRIX: |
| 147 | av_log(ctx, AV_LOG_INFO, "displaymatrix: rotation of %.2f degrees", |
| 148 | av_display_rotation_get((int32_t *)sd->data)); |
| 149 | break; |
| 150 | case AV_FRAME_DATA_AFD: |
| 151 | av_log(ctx, AV_LOG_INFO, "afd: value of %"PRIu8, sd->data[0]); |
| 152 | break; |
| 153 | default: |
| 154 | av_log(ctx, AV_LOG_WARNING, "unknown side data type %d (%d bytes)", |
| 155 | sd->type, sd->size); |
| 156 | break; |
| 157 | } |
| 158 | |
| 159 | av_log(ctx, AV_LOG_INFO, "\n"); |
| 160 | } |
| 161 | |
| 162 | return ff_filter_frame(inlink->dst->outputs[0], frame); |
| 163 | } |
| 164 | |
| 165 | static const AVFilterPad avfilter_vf_showinfo_inputs[] = { |
| 166 | { |
| 167 | .name = "default", |
| 168 | .type = AVMEDIA_TYPE_VIDEO, |
| 169 | .filter_frame = filter_frame, |
| 170 | }, |
| 171 | { NULL } |
| 172 | }; |
| 173 | |
| 174 | static const AVFilterPad avfilter_vf_showinfo_outputs[] = { |
| 175 | { |
| 176 | .name = "default", |
| 177 | .type = AVMEDIA_TYPE_VIDEO |
| 178 | }, |
| 179 | { NULL } |
| 180 | }; |
| 181 | |
| 182 | AVFilter ff_vf_showinfo = { |
| 183 | .name = "showinfo", |
| 184 | .description = NULL_IF_CONFIG_SMALL("Show textual information for each video frame."), |
| 185 | .inputs = avfilter_vf_showinfo_inputs, |
| 186 | .outputs = avfilter_vf_showinfo_outputs, |
| 187 | }; |